JP3643594B2 - Uese' body for the intervertebral space - Google Patents

Uese' body for the intervertebral space Download PDF

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Publication number
JP3643594B2
JP3643594B2 JP50947195A JP50947195A JP3643594B2 JP 3643594 B2 JP3643594 B2 JP 3643594B2 JP 50947195 A JP50947195 A JP 50947195A JP 50947195 A JP50947195 A JP 50947195A JP 3643594 B2 JP3643594 B2 JP 3643594B2
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Prior art keywords
uese
body
characterized
rounded
contact surface
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Expired - Lifetime
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JP50947195A
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JPH08503876A (en
Inventor
ヨハネス フリドリン シュラプフェル
フランコイス チャールズ ベッカーズ、ルイス
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ジンテーズ アクチエンゲゼルシャフト,クール
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Priority to BE9300982A priority Critical patent/BE1007549A3/en
Priority to BE9300982 priority
Application filed by ジンテーズ アクチエンゲゼルシャフト,クール filed Critical ジンテーズ アクチエンゲゼルシャフト,クール
Priority to PCT/CH1994/000184 priority patent/WO1995008306A1/en
Publication of JPH08503876A publication Critical patent/JPH08503876A/en
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    • A61F2002/4623Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof having a handle portion, e.g. integral with the implanting tool
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    • A61F2310/00592Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00796Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite

Description

本発明は請求項1の上位概念による椎間腔のための植接体に関する。 The present invention relates to Uese' body for intervertebral space according to the preamble of claim 1. このような植接体は主として椎体の骨橋を促進するために用いられ、椎間円板又は椎間板の切除の後に椎体と脊柱の間に取り付けられる。 Such Uese' bodies mainly used to facilitate bony bridging of the vertebral body, is mounted between the vertebral bodies and spinal after excision of the intervertebral disc or intervertebral disc.
椎間板が損傷した時これを摘出し、生じた空隙を皮質海綿状骨で埋めることができることは知られている。 Excised this when the disc is damaged, it is known that the resulting gap can be filled by cortical cancellous bone.
この方法では椎体をまず拡開器によってできるだけ伸展して引き離す。 In this way away as much as possible extended by first spreader vertebral. 特殊技術はくさび形部材ーいわゆる拡張器ーを2つの椎体の間に挿入して、これらの椎体を徐々に拡張して引き離すものである。 Special techniques by inserting a so-called dilator over wedge-shaped member over between two vertebral bodies, but to separate extended these vertebral bodies gradually. その場合交互に左右で1mmだけ大きい直径の拡張器を夫々後部から取り付ける。 Mounting a dilator just larger diameter 1mm on the left and right in this case alternately from each rear. 最大可能な伸展に達した後拡張器を上述の皮質海綿骨に置き換える。 After reaching the maximum possible extension replace dilator cortical cancellous bone as described above.
この公知の技術は、骨を取り扱うこと及び正しい位置に置くことが困難であり、修正がほとんど不可能であるという欠点がある。 This known technique, it is difficult to put to handle the bone and correct position, there is a disadvantage that modifications are almost impossible. この技術のもう1つの欠点は、隣接する椎体の元来凹曲する側面の間に移植骨を入れるために、椎間腔に長方形又は円筒形空欠部をえぐり取り及び/又は削り取らなければならないことである。 Another disadvantage of this technique is to add bone graft between the side of the original concave of the adjacent vertebral bodies, unless gouging up and / or shaved off rectangular or cylindrical air-cut-out portions in the intervertebral space not not be at. それは面倒であり、しかも椎体の損傷を招く。 It is a cumbersome, yet lead to damage of the vertebral body.
ここで本発明が対策を講じようとする。 Here in the present invention is to intends to implement the measures. 本発明の根底にあるのは、特殊な形状と挿入方式に基づき椎体間の極めて安定な係着を可能にし、その際椎体の骨性蓋板を損傷することがない椎間腔のための植接体を提供する課題である。 Underlying the present invention enables very stable fastening of the interbody based on the insertion method a special shape, whereby for intervertebral space not damaged bony cover plate of the vertebral body it is an object to provide a of Uese' body. 本発明のもう1つの課題は、拡張器を使わずに挿入することができる椎間腔のための植接体を提供することにある。 Another object of the present invention is to provide a Uese' body for intervertebral space can be inserted without the dilator.
本発明は請求項1の特徴を有する椎間腔のための植接体により上記の課題を解決する。 The present invention solves the above problem by Uese' body for intervertebral space with the features of claim 1.
本発明のその他の有利な構成が従属請求項で特徴づけられている。 Other advantageous embodiments of the present invention are characterized in the dependent claims.
本発明に基づく植接体は器具で把持するための装置を具備するから、植接体を取り付けた後に移動し又は場合によっては再び取り出すことを可能にする外力を植接体に比較的たやすく働かせることができる。 Since Uese' body according to the present invention comprises a device for gripping by the instrument, relatively easily the external force that makes it possible to retrieve again by moving or after mounting the Uese' body Uese' body it can work.
器具により把持するための装置は、回転力及び/又は軸方向力及び/又は横力を植接体に働せることができるように、取付け点として形成することができる。 Device for gripping by the instrument, the rotational force and / or axial forces and / or lateral force to be able to work in Uese' body can be formed as an attachment point.
好適な実施態様においては、この取り付け点は少なくとも回転力を植接体に働かせることを可能にするように形成されている。 In a preferred embodiment, the attachment point is formed so as to allow exerting at least a rotational force to the Uese' body. その場合植接体の回転によって多かれ少なかれ植接体が緊定されるか又は一方の位置でそれ自体が完全に遊離し、こうして椎体の間にたやすく挿入することができ、他方の位置では必要な緊定を有するように、植接体は異なる横断面長さ In that case in or one position more or less explants contact body by rotation of the Uese' body is clamped itself completely free, thus can be easily inserted between the vertebral bodies, and in the other position so as to have the required clamping cross section length Uese' body different
を有しなければならない。 It must have.
別の実施態様では椎体に空欠部を穿設する必要がなく、椎体の周縁を損傷せずに、椎間腔に圧入することができるように、1つの平面では植接体の本体がレンズ状に裁断された輪郭を有し、輪郭の大部分が椎間腔の矢状断面の双凹形と一致するが、別の平面では同じ本体が主として平行で平坦な又は僅かに湾曲した側面と丸みのついた端部を有する。 It is not necessary to bored Soraketsu portion vertebral body in another embodiment, without damaging the periphery of the vertebral bodies, so that it can be pressed into the disc space, the body of Uese' body in one plane There has a contour which is cut into a lens shape, but most of the contour matches the bi-concave sagittal sections of the intervertebral space, the same body has a flat or slightly curved largely parallel in another plane having attached ends of sides and rounded.
植接体は骨材料で充填することができるように中空であることが好ましい。 Uese' body is preferably a hollow so that it can be filled with bone material.
本発明を一層明らかにするために、当該の図面を参照しつつ好適な構成の幾つかの例ー但し本発明はこれに限るものではない−を次に説明する。 To clarify the invention further, some examples over However, the present invention suitable configuration with reference to the drawings is not limited thereto - then be described.
図1は2個の拡張器で伸展して引き離した2個の椎体の略図、 Figure 1 is two vertebral bodies schematic pulled apart by extended by two dilator,
図2は拡張器を小さな直方体の骨に置き換えた図1のII−II線に沿った横断面図、 Figure 2 is a cross-sectional view taken along line II-II of Figure 1 replacing the dilator to a bone of a small rectangular parallelepiped,
図3は本発明に基づく植接体及びそのために使用される器具の斜視図、 Figure 3 is a perspective view of a device used for Uese' body and according to the present invention,
図4は図3の矢印F4の方向に見た平面図、 Figure 4 is a plan view looking in the direction of arrow F4 of FIG. 3,
図5は図3の矢印F5の方向に見た平面図、 Figure 5 is a plan view looking in the direction of the arrow F5 in Figure 3,
図6は図4の、VI−VI線に沿った横断面図、 6 in FIG. 4, a cross-sectional view taken along the line VI-VI,
図7は椎体の間に挿入した後の図3による植接体の略図、 Figure 7 is schematic representation of Uese' body according to FIG. 3 after insertion between the vertebral bodies,
図8は2個の椎体の間に挿入し、90゜回転した後の図3による植接体の略図図9は本発明の別の構成及びそのために使用される器具の略図、 Figure 8 is inserted between the two vertebral bodies, another configuration and schematic representation of instruments used for its schematic Figure 9 the present invention Uese' body according to FIG. 3 after rotating 90 °,
図10は片側の丸みを有する本発明植接体の横断面図、 Figure 10 is a cross-sectional view of the present invention planted contact body having one side rounded,
図11は対角線上の両側の丸みを有する本発明植接体の横断面図、 Figure 11 is a cross-sectional view of the present invention planted contact body having both sides of the rounding on the diagonal,
図12は2個の左右対象の本発明植接体の一対の配列の横断面図、 Figure 12 is a cross-sectional view of a pair of sequences of two symmetrical of the present invention planted contact body,
図13は関節間板腔を伸展することができる対をなして配列された左右対称の本発明植接体の略図、 Figure 13 is schematic representation of the present invention planted contact body symmetrical arranged in pairs capable of extending the joint between plate space,
図14は関節間板腔にあって、第3の植接体により前部が連結された2個の扁平な植接体の、隣接する椎体の蓋板の凹面への回転の前後の略図、 Figure 14 In the joint contact plate space, the third two flat Uese' body front portion are connected by Uese' of, before and after the rotation in the concave of the cover plate of the adjacent vertebral bodies schematic ,
図15は海綿状骨材料又は骨伝導性又は骨誘導性材料の収容のための縦切り口と骨成長のための壁部の横穴を有する本発明植接体の斜視図、 Figure 15 is a vertical cut and perspective view of the present invention planted contact body having a transverse bore of the wall portion for bone growth for receiving the spongy bone material or osteoconductive or osteoinductive material,
図16は蓋板の凹面への植接体の回転が一方の方向にだけ可能なように縦刻みを形成した、植接体と骨との間の縦刻み付き接触面を有する本発明植接体の斜視図、 16 to form a vertical increments so that the rotational capable only in one direction of Uese' body in the concave of the cover plate, the present invention Uese' having a longitudinal knurled contact surface between the Uese' body and bone perspective view of the body,
図17は一方の刻みが前方への並進を、他方の刻みが後方への並進を阻止するように横刻みが形成された、植接体と骨との間の横刻み付き接触面を有する本発明植接体の斜視図を示す。 Translation of 17 to one increment of the forward, the lateral increments as other increments prevents translation of rearward is formed, the having a lateral knurled contact surface between the Uese' body and bone It shows a perspective view of the invention explants contact body. 前方への並進の阻止は残留する椎間輪の負担の軽減をもたらす。 Translation of the blocking forward leads to reduction of burden of intervertebral wheels remaining. この椎間輪は最近の研究によれば神経支配されており、従って前方圧迫に対して疼痛信号で反応するのである。 The intervertebral wheels are innervated Recent studies, hence of being reacted with the pain signal to the forward pressure.
本発明及び本発明の改良を次に幾つかの実施例の一部概略図による図示に基づいて更に詳しく説明する。 The improvement of the present invention and the present invention will now be described in detail based on the illustrated according to some schematic views of several embodiments.
図1及び2に基づき公知の技術をまず最初に説明する。 First it will be described first known techniques based on FIGS.
椎間板を取り除く時、拡張器3を取り付けることができるように、図1に示すように2個の隣接する椎体1及び2をなるべく伸展して引き離す。 When removing the disc, to be able to attach the dilator 3, away and possible extension of the vertebral bodies 1 and 2 to two adjacent, as shown in FIG. 椎体1及び2が所望の間隔になった後に、図2に示すように拡張器3を移植骨4に置き換える。 After vertebral body 1 and 2 becomes a desired interval, replaces the dilator 3 as shown in FIG. 2 in bone graft 4. 椎体1及び2に空欠部を穿設した後、押圧部材5により移植骨4を椎体の間に移植する。 After bored Soraketsu portion vertebral bodies 1 and 2, implanting the bone graft 4 between vertebral bodies by the pressing member 5. この技術が明細書の冒頭に述べた欠点を有することは明らかである。 It is clear that with the disadvantage of this technique is mentioned at the beginning of the specification.
そこで図3ないし6に示す本発明植接体がこの欠点を克服し、迅速に挿入し、更に必要ならば力を加えて2個の椎体の間に緊定することを可能にする。 So Figure 3 to present invention explants contact body shown in 6 overcomes this disadvantage to quickly insert, makes it possible to tensioning during further if necessary by applying a force of two vertebral bodies. 植接体6はおおむね器具9による把持のための装置8を備えた本体7からなる。 Uese' body 6 consists of a body 7 which generally comprises a device 8 for gripping by the instrument 9. 器具9による把持のための装置8は回転力、軸方向力及び/又は横力を好ましくはすべての方向に植接体6に働かせることができるように形成されている。 8 rotation forces for gripping by the instrument 9 is formed so as to preferably axial forces and / or lateral force can be exerted in all directions in Uese' body 6.
図3ー6に示すように、装置8は少なくとも回転力Rを働かせることができるように形成し、それに関連して植接体は上記の装置8の回転により植接体6の本体7を椎体1及び2の間に大きな又は小さな間隔を置いて挿入することができるように、異なる直径又は横断面長さ Figure 3 As shown in -6, 8 is formed so as to be able to work at least rotational force R, vertebral body 7 of Uese' body 6 Uese' body in relation to it by the rotation of the above-described apparatus 8 as it can be inserted at a larger or smaller spacing between the body 1 and 2, different diameters or cross-sections length
を持つように形成することが好ましい。 Preferably formed to have.
図3ー6による構成においては装置8は植接体6の軸方向後端部10で本体7の内側に設けた空欠部からなる。 Device 8 is in the configuration according to FIG. 3-6 is made of the depleted portion provided inside the main body 7 in the axial rearward end portion 10 of the Uese' body 6. 空欠部は器具9を挿入することを可能にする。 Check out portions makes it possible to insert the tool 9. 図示のように、空欠部は多角形例えば六角形の軸方向開口からなることができ、この場合穴付きねじ用キー As illustrated, the depleted portion can be made of polygonal e.g. hexagonal axial opening, the key for this case slotted screws
の形の六角形端部11を具備する器具9を使用しなければならない。 Shape of the hexagonal end portion 11 of the must use tool 9 having a.
器具9の挿入のために内側に設けた開口の使用、即ち前述の空欠部は、妨げになる部が植接体6から突出しないという利点をもたらす。 Use of openings provided inside for insertion of the instrument 9, i.e. the depleted portion of the above provides the advantage that parts min hinder does not protrude from Uese' body 6.
本体7は以下に述べる特徴の1つ又は幾つかを備えた特殊な形状を有することが好ましい。 Body 7 preferably has one or special shape with a number of the features described below.
−本体7の軸方向前端部12は丸みを付け又はくさび形に形成しなければならない。 - axial forward end portion 12 of the body 7 has to be formed with or wedge-shaped rounded. なぜならこれは椎間腔25への挿入を容易にするからである。 Because this is because to facilitate insertion into the intervertebral space 25.
−本体7の軸方向前端部12の丸み面側 13は、専ら最小直径D1−図4を参照−と平行な横断面に沿って延び 、図5に示すように、 横断面に対して直角をなす横断面に沿っ て延びないことが好ましい(すなわち、図4に示す横断 面には丸み面が形成され、図5に示す横断面には丸み面 が形成されない。) - rounded surface 13 of the axial forward end portion 12 of the body 7, exclusively refer to the minimum diameter D1- 4 - extends along a parallel cross-section, as shown in FIG. 5, the right angle to the cross-section preferably does not extend along the forming cross-section (i.e., the cross-section shown in FIG. 4 radiused surface is formed, rounded surfaces are not formed in the cross section shown in FIG.).
−最小直径が通る側面14及び15は、丸み13を除き、平行かつ平坦であることが好ましい。 - side 14 and 15 through a minimum diameter, except for the rounded 13 are preferably parallel and flat.
−側面図で本体7は、図5に示すように面取りしたレンズ状の輪郭、即ち椎間腔の矢状断面が有する自然の双凹形と一致する輪郭を有することが好ましい。 - body 7 in side view, preferably has a contour that matches the natural bi-concave chamfered lenticular profile, i.e. the sagittal sections of the disc space has, as shown in FIG. 側面14及び15の間の中間部と側面16及び17は丸みを帯びている。 Intermediate portion and the side surface 16 and 17 between the sides 14 and 15 are rounded.
−側面16及び17は1つの横断面に沿って少なくとも部分的に、なるべくは完全に扁平であることが好ましい。 - side 16 and 17 at least partially along one cross section, it is preferable that as much as possible is completely flat. 側面17及び18が横方向に少なくとも部分的に平坦であることは、緊定状態で傾倒に対する安定性を与えるという利点をもたらす。 It sides 17 and 18 is at least partially flat in the lateral direction, offers the advantage of providing stability to tilting in clamping state. −本体7は移植物の充填のための単数個または複数個の開口または空欠部を有する。 - body 7 has a single several or a plurality of openings or empty out portions for the filling of the implant. 図3ないし6によれば、側面16から側面17へ伸張する貫通する開口18が選ばれる。 According to FIG. 3 through 6, an opening 18 penetrating extending from the side surface 16 to side surface 17 is selected. 開口18は平行する壁面19及び20を有する縦長のスロットからなることが好ましい。 Opening 18 is preferably made of elongated slots with walls 19 and 20 parallel.
−植接体はチタン又は植接体に適したチタン合金で製造することが好ましい。 - Uesettai is preferably made of a titanium alloy which is suitable for titanium or Uese' body.
−複数個の垂直穴を本体7に作り、その上で中間壁を削り取れば、図3の植接体の本体7に開口18又は開口部(Schlitz)を設けることができる。 - creating a plurality of vertical holes in the body 7, if Kezuritore the intermediate wall on its can to provide an opening 18 or opening (Schlitz) to the main body 7 of the Uese' of FIG.
−植接体6、正確に言えば本体7は約22mmの長さLを有し、ほぼ1.5mmの壁厚W1を余すまでくり抜くことが好ましい。 - Uese' body 6 has a length L of the body 7 to be precise about 22 mm, hollowing it is preferable to exhaustively wall thickness W1 of approximately 1.5 mm. 装置8を備えた軸方向後端部10は6mmの最小直径を有することが好ましい。 Axial rear end 10 provided with a device 8 preferably has a minimum diameter of 6 mm. 装置8の部位の最小壁厚W2及び器具の太さDを可能な限り大きくするために、上記の空欠部の最大直径の方向が本体7の最大直径の方向と一致するように上記の空欠部を設ける。 In order to increase as much as possible the thickness D of the minimum wall thickness W2 and apparatus parts of the apparatus 8, the above air so that the direction of the maximum diameter of the depleted portion of the coincides with the direction of the maximum diameter of the body 7 the cut-out portion is provided.
第7図及び8に基づいて次に2個の椎体1及び2の間での植接体6の使用及び取付けを説明する。 The use and installation of Uese' body 6 between the vertebral bodies 1 and 2 and then the two on the basis of FIG. 7 and 8 will be described.
第7図には、キーに似た適当な器具9の端部にある植接体6を2個の椎体1及び2の間にいかにして取付けることができるかを示す。 The Figure 7 shows how it is possible to attach the Uese' body 6 at the end of the appropriate instrument 9, similar to key how to between two vertebral bodies 1 and 2. その場合植接体6が最小直径D1と共に椎体1及び2の向き合う側面22及び23の間に挿入される。 In that case Uese' body 6 is inserted between the side surfaces 22 and 23 of opposing vertebral bodies 1 and 2 with the minimum diameter D1. なお植接体6は移植骨24で既に充填されている。 The Uese' body 6 has already been filled with bone graft 24. 次に植接体6を椎体1及び2の間に嵌合又は緊定して取付けるために、器具9のキー21を90゜回転し、器具9を除去した後、それによって図8に示す状態が得られる。 Then the Uese' member 6 for attachment to fit or clamped between the vertebral bodies 1 and 2, the key 21 of the tool 9 is rotated 90 °, after removal of the tool 9, thereby 8 state is obtained. 移植骨24は椎体1及び2に接続するから、植接体6は移植骨24の癒着により強固な保持を得ることができる。 Because the bone graft 24 is connected to the vertebral bodies 1 and 2, Uese' body 6 can obtain a firm retained by adhesion of bone graft 24.
植接体6は特別な補助手段なしで椎骨の一方の側から挿入することができるが、椎骨を予め楕円形拡張器により左側と右側で伸展して引き離し、 椎骨の他の側で植接体6が緊定されるまでこの位置に保持すれば、操作を簡素化することができる。 Although Uese' body 6 can be inserted from one side of the vertebra without special auxiliary means, distancing and extended in the left and right in advance by oval dilator vertebrae Uese' body on the other side of the vertebrae if held in this position until 6 is clamped, it is possible to simplify the operation. ところが植接体6の存在は植骨面が再びずれて近接することを阻止するから、ここで最後の拡張器を除去し、場合によっては第2の植接体6に置き換えることができる。 However the presence of Uese' body 6 because prevents the Uekotsu surface proximate shifted again, here to remove the last dilator may optionally be replaced by a second Uese' body 6. 通常は2個の植接体6を取付けなければならない。 Usually it must be fitted with two Uese' body 6.
図7及び8ではっきり分るように、異なる直径D1及びD2を有する回転可能な植接体6を使用すれば、これを椎体1及び2の間に自由に、あまり骨折らずに挿入することができ、他方では回転することにより椎体の間に完全に保持することができる。 As can be seen clearly in FIGS. 7 and 8, the use of Uese' body 6 rotatable with different diameters D1 and D2, which freely between the vertebral bodies 1 and 2 are inserted without Kossetsura much it can, on the other hand can be completely held between the vertebral bodies by rotating. 従って長方形又は円筒形の空間を得るために椎間腔25をくり抜き又は削り取る必要もない。 Therefore there is no need to cut-out or scraped off intervertebral space 25 in order to obtain a rectangular or cylindrical space.
植接体6の本体7は異なる直径D1及びD2を有するから、本体7は椎間腔25から簡単に除去される。 Body 7 of Uese' body 6 from having different diameters D1 and D2, the main body 7 is easily removed from the intervertebral space 25. 植接体6を緊定の後に最小直径D1が椎体1及び2の間にくるまで逆方向に回転すれば、再び取外すことができることは明白である。 If rotation in the reverse direction Uese' body 6 after the clamping to the minimum diameter D1 comes between the vertebral bodies 1 and 2, it is apparent that can be removed again.
椎間腔25の自然の双凹形と一致する形状の本体7を有する植接体6を使用すれば、椎体1及び2の側面22、23と移植骨24を移植した植接体6の側面16,17との間の完全な接続が自動的に生じる。 With Uese' body 6 having a body 7 shaped to match the natural bi-concave disc space 25, Uese' body 6 of transplanted with bone graft 24 and the side surface 22, 23 of the vertebral body 1 and 2 full connection between the side surface 16, 17 is automatically generated.
植接体6の回転という技術には次の利点がある。 The technique of rotation of Uese' body 6 has the following advantages.
−蓋板が凹曲しているならばこの回転は、ある次元では平坦であって、別の次元では蓋板の幾何学的形状に対応するように植接体6を形成する可能性をもたらす。 - The rotation if the cover plate is concave, there is provided a flat in one dimension, in another dimension offers the possibility of forming a Uese' body 6 so as to correspond to the geometry of the cover plate . 平坦な次元は後方からの差込みを容易にする。 Flat dimension facilitates insertion from the rear. 湾曲面は蓋板との最適な接触をもたらす。 Curved surface results in optimum contact with the cover plate.
−蓋板が平坦であれば、関節間板腔を拡開するために回転を利用することができる。 - if the cover plate is flat, it is possible to utilize the rotation for expanding the joint between plate space.
−植接体は挿入の後に初めて回転されるから植接体の表面に横歯を付けることが可能である。 - Uese' body can be put Yokoha from the first time rotated after insertion into the surface of the Uese' body.
もちろん種々異なる形の植接体6を実現することができる。 Of course it is possible to realize a Uese' body 6 of different forms. 六角穴付きねじ用キー Key for hexagon socket screws
のための空欠部の代わりに、例えば四角形、長方形又は楕円形開口からなる他の空欠部形状を使用することもできる。 Empty instead of cut-out portion, for example a square, the other the depleted portion shape consisting of a rectangular or oval openings could be used for.
器具9による把持のための装置8は、植接体6の内側に設けることが好ましいが、これは絶対に必要という訳でない。 8 for gripping by the instrument 9 is preferably provided on the inside of the Uese' body 6, this is not absolutely necessary. 装置8が突出する部材又は軸方向後端部10の特定の形状からなり、突出する部材又は軸方向後端部10を適当な器具に固定して、必要な力を働かせることができるようにすることもできる。 It consists particular shape of the member or axial rearward end portion 10 device 8 projects, the members or axial rear end 10 projecting fixed to a suitable instrument, to be able to exert the necessary force it is also possible.
本発明の別の構成によれば、装置8は回転力だけでなく、植接体6を取り付ける時に必要ならば椎体1及び2の間に圧入し、万一再び取り出す時及び緊定する時に植接体6に引張力を働かせることができるように、同時に軸方向力、即ち圧縮力も引張力も働かせることができるように構成されている。 According to another embodiment of the present invention, apparatus 8 is not only rotational force, when pressed between the vertebral bodies 1 and 2 if necessary when mounting the Uese' body 6, to when and tensioning retrieve event again as can be exerted a tensile force on Uese' body 6, and is configured to be able to work at the same time axial forces, i.e. compressive forces tensile strength also. こうして植接体6を処置の際に再び除去することが随時可能である。 Thus it is possible at any time again removing Uese' body 6 during the treatment.
このような構成を図9に基づいて示す。 Such an arrangement is illustrated with reference to FIG. その場合装置8は回転力の行使を許容する第1の取付け部材26と、植接体6に対する軸方向圧縮力及び引張力の行使を可能にし、そのために軸方向ロックを具備する第2の取付け部材27とを連結する。 A first mounting member 26 in which case unit 8 that allows the exercise of rotational force, a second attachment that enables the exercise of axial compressive forces and tensile forces against Uese' body 6 comprises an axial locking to its connecting the member 27.
第1の取付け部材26は図3の構成に示した空欠部からなる。 The first mounting member 26 is made of the depleted unit shown in the configuration of FIG. 第2の取付け部材27は、例えば上記の六角形穴の壁面の開口部(Schlitz)の形の補助空欠部からなる。 The second attachment member 27 is made of, for example, the form of sub-air cut-out portion of the opening portion of the wall surface of the hexagonal hole (Schlitz). この開口部(Schlitz)に当該の器具9のロッキング部材28が係合することができる。 Locking member 28 of the instrument 9 can engage in the opening (Schlitz). 図9に示すように、ロッキング部材28は球体等からなることができ、器具9を六角形空欠部に挿入した後、このロッキング部材が半径方向外側へ押圧され、上記の開口部(Schlitz)に係合する。 As shown in FIG. 9, the locking member 28 may be formed of a sphere or the like, after the insertion of the tool 9 in a hexagonal empty out portions, the locking member is pressed radially outward, above the opening (Schlitz) to engage in.
その場合器具9は種々の形状を有し、様々な仕方で操作することができる。 In that case the instrument 9 has a variety of shapes, it can be operated in various ways. 図9によれば、これはくさび30と連結された切換えグリップ29により実行することができる。 According to FIG. 9, which can be performed by switching the grip 29 which is connected to the wedge 30. 一方、切換えグリップ29はロッキング部材28を押し離し又は弛める。 On the other hand, the switching grip 29 is released and press the locking member 28 or loosening.
別の変型ではキーの端部が割ってあり、キーが挿入される植接体6の開口の中でキーを緊定することができるように、内部のピンの押し込み又はねじ込みにより外径を拡大することができる。 In another variation Yes divided the ends of the keys, so that it can be clamped key in the opening of the Uese' body 6 key is inserted, expand the outer diameter by pushing or screwing the internal pin can do.
別の変型によれば植接体6の丸み13を有する軸方向前端部12にも、器具9のための取付けの可能性を設けることができる。 In axial forward end portion 12 having a rounded 13 Uese' member 6 according to another variation, it is possible to provide the possibility of mounting for the instrument 9. この取付けの可能性は様々であり、装置8と同様に植接体6に対する回転力、軸方向及び/又は横力の行使を可能にするように設計することが好ましい。 The possibility of mounting is different, the rotational force for Uese' member 6 in the same manner as device 8 is preferably designed to allow exercise of axial and / or lateral forces. 取付けの可能性は多角形、例えば六角形の開口からなる。 Possibility of mounting consists of a polygon, for example hexagonal opening. 十分に強固に癒着し、経腹腔的に除去せざるを得ないようにならない内に植接体6にねじり力を働かせるために、この開口は適当な端片を持つキーを取り付けることを可能にする。 Sufficiently firmly adhesion, in order to exert a torsional force on Uese' body 6 in less become through abdominal removed forced so, possible to attach a key this opening with a suitable end piece to. 本発明は勿論経腹腔的に植接体を取り付けることを可能にする取付け装置を一端に具備した植接体6にも関する。 The present invention also relates to Uese' body 6 equipped at one end a mounting device that allows attachment of the course through the abdominal cavity to Uese' body.
図10及び11には、一部に丸みを帯びた横断面図を有する本発明植接体を示す。 The 10 and 11 show the present invention explants contact body having a transverse cross-sectional view of a rounded part.
図10は植接体6の横軸44に沿って実質的に直方体の本 体7の縦軸35に直角をなしている横断面を示す。 Figure 10 shows a cross-section that is at right angles to the longitudinal axis 35 of a substantially rectangular solid of the body 7 along the horizontal axis 44 of the Uese' body 6. この直 方体の本体7は好ましくは該本体7の全長さにわたって 走る1つの丸みを帯びた端31を有する Body 7 of the straight rectangular parallelepiped preferably has an end 31 bearing a single rounded running over the entire length of the body 7. この片側に設けた丸み31の半径は、a) 実質的に長方形横断面の長辺と丸みを帯びた縁端31をよぎる対角線との差が3mm未満、好ましくは1−2mmであるように寸法を取る。 Dimensions as Radius 31 provided on the one side, the difference is less than 3mm with diagonal crosses the edge 31 bearing a long side and a rounded a) substantially rectangular cross-section, is preferably 1-2mm I take the. またb)小さい面が2分の1未満、好ましくは3分の1未満だけ縮小されるように設計されている。 The b) low surface is less than one half, preferably designed to be reduced by less than one-third. 即ち支持面が植接体の全幅の少なくとも2/3に相当しなければならない。 That support surface must correspond to at least two thirds of the total width of the Uese' body.
図11はもう1つの植接体6の横軸44に沿って実質的に 直方体の本体7の縦軸35に直角をなしている横断面を示 す。 11 shows the cross-section that is at right angles to the longitudinal axis 35 of a substantially rectangular parallelepiped main body 7 along the horizontal axis 44 of another Uese' body 6. この直方体の本体7は図11の横断面に示されるよう に、好ましくは該本体7の全長さにわたって走る2つの 対角的に相対する丸みを帯びた端32を有する The rectangular body 7 as shown in the cross-section of FIG. 11, preferably has an end 32 bearing a two diagonally opposed rounded running over the entire length of the body 7. この相対する両側の丸み32の半径は、a)実質的に長方形横断面の長辺と丸みを帯びた縁端32をよぎる対角線との差が3mm未満、好ましくは0.5−1.0mmであるように寸法を取る。 The radius of the opposite sides of the rounded 32, a) less than the difference between the diagonal crosses substantially edge 32 bearing a long side and a rounded rectangular cross-section 3 mm, preferably such that 0.5-1.0mm take the dimensions. またb)植接体の小さい方の面が2分のl未満、好ましくは3分の1未満だけ縮小されるように設計されている。 The b) Uese' smaller surface is less than half l of the body, which is preferably designed to be reduced by less than one-third.
図12に対称軸33に関して対称に配列された2組の植接体6の対を示す。 Showing the two sets of pairs of Uese' body 6 arranged symmetrically with respect to the symmetry axis 33 in Figure 12. その場合部分(a)の2つの上側の植接体6は図10による片側に丸みを有する植接体、部分(b)の2つの下側の植接体6は図11による相対する両 側に丸みを有する植接体を示す。 Two Uese' body 6 upper Uese' having rounded on one side according to FIG. 10, two opposing both sides by Uese' body 6 Figure 11 of the lower part (b) of the case part (a) shows a Uese' having rounded.
図6に示す植接体6を整列(回転)すると椎間腔25が約3ー4mm過伸展され、それが蓋板の割れや結合組織の永久過伸展を招く恐れがある。 Aligning the Uese' body 6 shown in FIG. 6 (rotation) Then intervertebral space 25 is approximately 3 over 4mm hyperextension, there is a possibility that it leads to permanent hyperextension cracking and connective tissue of the cover plate. ところが縁端が丸み(31、32)を有するならば、過伸展が大幅に減少されるが、整列された植接体の安定性もそれと共に減少するので対をなす植接体を相互に安定化するために左右対称に配列しなければならない(図13)。 However, if the edge has a rounded (31, 32), hyperextension but is greatly reduced, stable aligned Uese' body stability explants contact body paired so decreases with its mutually It must arranged symmetrically to reduction (Figure 13).
丸み31又は32の半径を適当に選定すれば、丸み31又は32を具備する2個の植接体の整列が椎間腔25の僅か1mmの過伸展をもたらすに過ぎない。 If properly selected Radius 31 or 32, only the alignment of the two Uese' body having a rounded 31 or 32 results in hyperextension of only 1mm of the intervertebral space 25. ところがその代わり個々の整列された植接体6はあまり安定でない。 But instead respective aligned Uese' body 6 is not very stable. 整列されたのと同じく傾倒するのもたやすいからである。 Also because easy to same inclination as aligned. 図13では2個の植接体6が相互の左右対称な幾何学的形状により転倒を防止される。 Two Uese' body 6 in FIG. 13 is prevented overturning by symmetrical geometry of each other. なぜなら植接体6は専ら組合せとしてしか転倒せず、個別には転倒し得ないからである。 Because not fall only as Uese' body 6 solely combination, because not fall individually.
図13に図11による2個の左右対称に配列された植接体6を示す。 Shows the Uese' body 6 arranged in two symmetrical by 11 in FIG. 13. その場合本体7の2つの丸み32は互いに対称になっている。 Two rounded 32 of the case main body 7 are symmetrical with each other. 植接体6の本体7は挿入の後に椎体1及び2の間に水平に横たわり、次いで椎間腔25を伸展するために黒色で示す位置7′に適当な器具9により90゜回転することができる。 Body 7 of Uese' body 6 lies horizontally between the vertebral bodies 1 and 2 after insertion, then suitable device 9 to the position 7 'shown in black by rotating 90 degrees to extend the intervertebral space 25 can. 本体7の長方形横断面は、隣接する椎体1、2の蓋板の凹面へ植接体6を90゜回転した後に椎間腔25の1ないし4mm、好ましくは2ー3mmの伸展が残るように構成されている。 Rectangular cross-section of the body 7, 1 to 4mm in intervertebral space 25 after the Uese' body 6 into the concave of the cover plate of the adjacent vertebral bodies 1, 2 is rotated 90 °, so preferably the extension of 2-3mm remains It is configured.
図14にはコネクタ34で前部が互いに連結され、椎間腔25(図平面)で扁平に横たわる2個の植接体6を示す。 Front portion are connected to each other by the connector 34 in FIG. 14 shows two Uese' body 6 lying flat in the intervertebral space 25 (FIG plane). 図14の左側部分には植接体6の回転の前の位置、図14の右側部分には隣接する椎体の蓋板の凹面へ90゜回転した後の位置を示す。 Position before the rotation of Uese' body 6 on the left side portion of FIG. 14, the right side portion of FIG. 14 shows the position after the concave into a 90 ° rotation of the cover plate of the adjacent vertebral bodies.
植接体6の後端部は自由であり、前部だけがコネクタ34によって連結されているから(a)左右の植接体6の間の間隔と相互の整列が維持され、(b)植接体6は縦軸35の回りに回転可能であり、(c)2つの植接体6を植接の前に及び/又はその場でコネクタ34で結合することができる。 The rear end of the Uese' body 6 is free, only the front mutual alignment and spacing between the Uese' member 6 from being coupled (a) right and left by a connector 34 is maintained, (b) planting Settai 6 is rotatable about a vertical axis 35, can be coupled with the connector 34 at and / or in-situ prior to Uese' two Uese' body 6 (c).
図15には海綿状骨材料若しくは骨伝導性又は骨誘導性材料を納めるための縦切り口36及び骨成長のための壁部の横穴37を有する植接体6を示す。 The Figure 15 shows the Uese' body 6 having a longitudinal cut edge 36 and the lateral holes 37 of the wall portion for bone growth to pay spongy bone material or osteoconductive or osteoinductive material. 穴37の直径は(a)縦開口部36に圧入された海綿状体が横に脱出せず、(b)海綿状体に含まれる液が植接体6を押し込む時に横に脱出せず、海綿状体の術後膨張を生じさせるために、植接の後に再び逆拡散することができ、(c)骨が穴37を通って植接体(6)の中に成長することができるように設計することが好ましい。 The diameter of the hole 37 without escaping laterally is spongy body that is pressed into (a) a vertical opening 36, not escape laterally when pushed Uese' member 6 liquid is contained in (b) spongy body, to generate postoperative swelling of the spongy body, it is possible to despread again after Uese', to be able to grow in the (c) Uese' body bone through the hole 37 (6) it is preferable to design to.
図16には植接体6と骨との接触面が縦刻み38を具備する植接体6を示す。 The Figure 16 shows the Uese' body 6 contact surface between Uese' body 6 and the bone is provided with a vertical increments 38. 縦刻み38は、矢印39、40で示唆するように、蓋板の凹面への植接体6の回転が一方の方向にだけ可能であるように形成することが好ましい。 Tatekizami 38, as suggested by arrows 39 and 40, it is preferable that the rotation of the Uese' body 6 to the concave of the cover plate is formed so as to be only in one direction.
図17には植接体6と骨との接触面が横刻み41を具備する植接体6を示す。 The Figure 17 shows the Uese' body 6 contact surface between Uese' body 6 and the bone is provided with a transverse increments 41. 横刻み41は、矢印42、43で示唆するように、一方の接触面が前方への並進運動を、他方の接触面が後方への並進運動を阻止するように設計することが好ましい。 Yokokizami 41, as indicated by arrows 42 and 43, the translational movement of one of the contact surface to the front, it is preferred that the other contact surface is designed to prevent translational movement of the rearward. 前方への並進運動の阻止は残留する椎間輪の負担を軽減する。 Inhibition of translation forward to reduce the burden of the intervertebral wheels remaining. この椎間輪は最近の研究によれば神経支配されており、従って前方圧迫に対して疼痛信号で反応するのである。 The intervertebral wheels are innervated Recent studies, hence of being reacted with the pain signal to the forward pressure.
本発明は、例として示し、図に示したモデルに決して限らない−別紙の要約書に示す定義の範囲から逸脱しなければ、このような拡張器及び付属の器具を種々の形状と大きさで製造することができる。 The present invention, as examples, in no way limited to the model shown in Figure - without departing from the definition of the range shown in the Abstract of Attachment, such dilator and the attendant instrument in various shapes and sizes it can be produced.

Claims (30)

  1. (イ)一辺の長さa,b,cのおおむね直方体状の形状の本体(7)、 (B) a side length of a, b, generally rectangular parallelepiped shape of the body of c (7),
    (ロ)縦軸(35)が貫く軸方向前端面(12)及び軸方向後端面(10)、 (B) the vertical axis (35) is axial forward end plane through (12) and the axial rear end surface (10),
    (ハ)横軸(44)が貫く2つの側面(14、15)、 (C) the horizontal axis (44) are two aspects penetrating (14, 15),
    (ニ)横軸(45)が貫く上面(16)及び下面(17),これにより(ホ)前記軸方向前端面(12)及び/又は軸方向後端面(10)が長方形に形成されており、 (D) the horizontal axis (45) penetrates the upper surface (16) and the lower surface (17), thereby (e) the axial front end surface (12) and / or axial rear end surface (10) is formed in a rectangular ,
    (ヘ)前記横軸(44)の方向で測定した本体(7)の一辺の長さaと前記横軸(45)の方向で測定した本体(7)の一辺の長さbが異なる、椎間腔(25)のための植接体(6)において、 (F) the length b of one side of the body (7) measured in the direction of the the side of the length a of the body (7) measured in the direction transverse axis (45) of the transverse axis (44) are different, vertebral Uese' body for Ma腔 (25) in (6),
    (ト)前記植接体(6)が器具(9)により把持するための装置(8)をさらに含み、該装置(8)が前記縦軸(35)の周りにいずれの回転方向にも植接体(6)に回転力を働かせるように形成されており、 (G) wherein said Uese' body (6) is further device (8) for gripping the instrument (9), said device (8) is planted in either rotational direction about the longitudinal axis (35) is formed so as to exert a rotational force on Settai (6),
    (チ)一部に丸みを帯びた断面を有する植接体(6)が前記縦軸(35)に直角をなしており、そして(リ)前記植接体(6)が最大直径(D2)の縦断面のレンズ状の輪郭を有することを特徴とする植接体。 (H) Uese' having a transverse cross-section a rounded part (6) is at right angles to the longitudinal axis (35), and (i) the Uese' body (6) is the largest diameter (D2 Uese' body characterized by having a lens-shaped profile of a longitudinal section of).
  2. 装置(8)が本体(7)の内側に多数の空欠部を含み、器具(9)をこの空欠部に挿入し得ることを特徴とする請求項1に記載の植接体。 Includes a number of the depleted portion inside the device (8) body (7), Uese' body according to claim 1, characterized in that the can insert a tool (9) in the air cutout portion.
  3. 空欠部が本体(7)の内側に設けた六角穴からなることを特徴とする請求項2に記載の植接体。 Uese' of claim 2 in which the depleted portion is characterized in that it consists of a hexagonal hole provided inside the body (7).
  4. 装置(8)が植接体(6)に対する軸方向力、圧縮力又は引張力働かせることができるように形成されていることを特徴とする請求項1ないし3のいずれか1つに記載の植接体。 Device (8) according to any one of claims 1 to 3, characterized in that is formed so as to be able to exert an axial force, compressive force or tensile force on Uese' body (6) Uese' body.
  5. 空欠部が器具(9)を収容するように形成され、該空欠部が器具(9)をロッキングするための2個の取り付け部材(27)を含むことを特徴とする請求項2ないし4のいずれか1つに記載の植接体。 Check out portions are formed so as to accommodate the instrument (9), the preceding claims 2, characterized in that it comprises two attachment members (27) for the air cutout portion to locking the instrument (9) 4 Uese' body according to any one of.
  6. 装置(8)が植接体(6)に対する横方向の力を働かせることができるように形成されていることを特徴とする請求項1ないしのいずれか1つに記載の植接体。 Uese' body according to any one of claims 1 to 5 unit (8), characterized in that it is formed so as to be able to exert a lateral force on Uese' body (6).
  7. 水平側面(14及び15)の大部分が平行かつ平坦であることを特徴とする請求項1ないし6のいずれか1つに記載の植接体。 Uese' body according to any one of claims 1 to 6, characterized in that the majority of the horizontal sides (14 and 15) are parallel and flat.
  8. 植接体の少なくとも一方の軸方向端部(10;12)が丸みを帯びていることを特徴とする請求項1ないし7のいずれか1つに記載の植接体。 At least one axial end of the Uese' body (10; 12) Uese' body according to the any one of claims 1 to 7, characterized in that rounded.
  9. 植接体(6)が平行な壁面(19、20)を備えた縦長のスロットの形の貫通する開口(18)を具備することを特徴とする請求項1ないし8のいずれか1つに記載の植接体。 Uese' body (6) according to any one of claims 1 to 8, characterized in that it comprises an opening (18) which penetrates in the form of elongated slots having parallel walls (19, 20) Uese' body.
  10. 器具(9)を把持するための第2の装置を備えたことを特徴とする請求項1に記載の植接体。 Uese' body according to claim 1, characterized in that a second device for gripping the instrument (9).
  11. チタン又はチタン合金からなることを特徴とする請求項1ないし10のいずれか1つに記載の植接体。 Uese' body according to any one of claims 1 to 10, characterized in that it consists of titanium or a titanium alloy.
  12. 片側の丸み(31)を備えた実質的に長方形横断面を有することを特徴とする請求項1ないし11のいずれか1つに記載の植接体。 Uese' body according to any one of claims 1 to 11, characterized in that it has a substantially rectangular cross-section with one side of the rounded (31).
  13. a)長方形横断面の縁の長辺と丸みのある縁端をよぎる対角線との差が3mm未満であり、 The difference between the diagonal crosses a certain edge of a long side and rounded edges of a) a rectangular cross-section is less than 3 mm,
    b)骨との接触面が丸み(31)によって植接体面が2分の1未満だけ縮小される、 b) Uese' body surface contact surface by rounding (31) of the bone is reduced by less than a factor of two,
    ように片側の丸み(31)の半径が設計されていることを特徴とする請求項12に記載の植接体。 Uese' of claim 12 in which the radius of one side of the round (31) is characterized in that it is designed to.
  14. 長方形の対角線をよぎる両側の2つの丸み(32)がある実質的に長方形横断面を有することを特徴とする請求項1ないし13のいずれか1つに記載の植接体。 Uese' body according to any one of substantially claims 1, characterized in that it has a rectangular cross-section 13 with two rounded sides (32) which crosses the diagonal of the rectangle.
  15. a)横断面の縁の長辺と丸みのある縁端をよぎる対角線との差が3mm未満であり、 a) the difference between the diagonal crosses a certain edge of a long side and rounded edges of the cross section is less than 3 mm,
    b)植接体の小さい方の面が2分の1未満だけ縮小される、 b) the surface of the smaller Uese' body is reduced by less than a factor of two,
    ように両側の丸み(32)の半径が設計されていることを特徴とする請求項14に記載の植接体。 Uese' of claim 14 in which the radius on both sides of the rounding (32), characterized in that it is designed to.
  16. それぞれ丸みを帯びた縁端が互いに対称になっているように配置された同じ椎間腔(25)を共有することを特徴とする請求項14に記載の一対の植接体。 A pair of Uese' body according to claim 14, edge rounded, respectively, characterized in that the share placed the same intervertebral space (25) as are symmetrical to each other.
  17. 蓋板間の空間内の植接体に回転した後、1ないし4mmの椎間腔(25)の伸展が残るように構成されたことを特徴とする請求項14に記載の植接体。 After rotating the Uese' body in the space of the lid plates, 1 to Uese' body according to claim 14, characterized in that it is configured to remain extensibility of the intervertebral space of 4 mm (25).
  18. 開口(18)が前記植接体の2つの骨接触表面内にあり、この開口(18)が骨が該開口を通してそして植接体中に成長できるような大きさであることを特徴とする請求項1に記載の植接体。 Located opening (18) has two bone-contacting inner surface of said Uese' body, wherein this opening (18), wherein the bone is sized to grow through the opening and into Uese' body Uese' body according to claim 1.
  19. 使用中に植接体と蓋板間に少なくとも1つの接触表面を有し、該接触表面が植接体の縦方向に刻みを有することを特徴とする請求項14に記載の植接体。 Uese' of claim 14 which has at least one contact surface Uese' body and lid plates in use, the contact surface and having a knurled longitudinally of the Uese' body.
  20. 使用中に植接体と蓋板間に2つの接触表面を有し、該接触表面が植接体の縦方向に刻みを有することを特徴とする請求項14に記載の植接体。 Uese' body of claim 14 having two contact surfaces Uese' body and lid plates in use, the contact surface and having a knurled longitudinally of the Uese' body.
  21. 前記刻みが第1の方向に植接体の回転をさせ、第2の方向に植接体の回転を防ぐことを特徴とする請求項19に記載の植接体。 Uese' of claim 19, characterized in that to prevent rotation of said increments is by the rotation of Uese' body in a first direction, Uese' body in a second direction.
  22. 使用中に植接体と蓋板間に少なくとも1つの接触表面を有し、該接触表面が横刻みを有することを特徴とする請求項14に記載の植接体。 Having at least one contact surface Uese' body and the lid plates during use, Uese' of claim 14, said contact surface and having a transverse increments.
  23. 使用中に植接体と蓋板間に2つの接触表面を有し、該接触表面が横刻みを有することを特徴とする請求項14に記載の植接体。 Has two contact surfaces Uese' body and the lid plates during use, Uese' of claim 14, said contact surface and having a transverse increments.
  24. 前記刻みが前方向に植接体が変位するのを防ぐことを特徴とする請求項22に記載の植接体。 Uese' body according to claim 22, wherein the increments are Uese' body forward direction is equal to or to prevent the displacement.
  25. 前記刻みが後方向に植接体が変位するのを防ぐことを特徴とする請求項22に記載の植接体。 Uese' of claim 22, characterized in that to prevent the Uese' body said increments is backward is displaced.
  26. 植接体と蓋板間の接触表面の刻みが、一方の刻みが前方向に植接体が変位するのを防ぎ、他方の刻みが後方向に植接体が変位するのを防ぐことを特徴とする請求項23に記載の植接体。 Characterized in that the increments of Uese' body and lid plates contact surface prevents the one increment of displacement is Uese' body front direction, preventing Uese' body backward the other increments of being displaced Uese' body according to claim 23,.
  27. 植接体が第2の接触表面を有し、該接触表面が横刻みを有することを特徴とする請求項19に記載の植接体。 Uese' body has a second contact surface, Uese' of claim 19, said contact surface and having a transverse increments.
  28. 前記壁面が縦長のスロットを有することを特徴とする請求項9に記載の植接体。 Uese' of claim 9, wherein the wall has a longitudinal slot.
  29. 前記スロットが骨伝導性又は骨誘導性材料で充填されていることを特徴とする請求項28に記載の植接体。 Uese' body according to claim 28, wherein the slot is characterized in that it is filled with osteoconductive or osteoinductive materials.
  30. 隣接する椎体(1、2)の蓋板の間に形成された椎間腔(25)のための植接体(6)であって、該植接体(6)は長方形の対角線をよぎる両側の2つの丸み(32)を付けた実質的に長方形横断面を有するおおむね直方体状の本体(7)、後端部および前端部、および器具(9)を把持するための装置(8)を含み、該植接体(6)の後端部は第2の植接体がコネクタにより該植接体に前面に接続できるように設計されており、前記装置(8)は植接体(6)を通して縦軸の周りにいずれの方向にも植接体(6)に回転力を働かせるように形成されており、さらに前記本体(7)は移植材料(24)で充填のための複数個の開口(18)を含み、該複数個の開口(18)は移植材料(24)で充填された時、該移植材料(24)は前記植接体(6)が椎間腔(25 A Uese' body for intervertebral space formed in the cover plates of adjacent vertebral bodies (1,2) (25) (6), the plant Settai (6) on both sides crosses the diagonal of the rectangle generally rectangular body having a substantially rectangular cross section attached two rounded (32) (7) comprises a rear end and a front end, and a device for gripping the instrument (9) to (8), the rear end of the plant Settai (6) is designed to be connected to the front the plants contact body by a connector second Uese' body, said device (8) is Uese' body through (6) ordinate Uese' body in either direction around (6) is formed so as to exert a rotational force to further the main body (7) is a plurality of openings for filling with graft material (24) ( 18) comprises, when the plurality several openings (18) is filled with graft material (24), said graft material (24) is the Uese' body (6) is an intervertebral space (25 )中の位置にある時に前記蓋板と接触するように配置されることを特徴とする前記植接体(6)。 The Uese' body, wherein the can is placed in contact with the cover plate when) at position (6).
JP50947195A 1993-09-21 1994-09-20 Uese' body for the intervertebral space Expired - Lifetime JP3643594B2 (en)

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BE9300982A BE1007549A3 (en) 1993-09-21 1993-09-21 Implant.
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PCT/CH1994/000184 WO1995008306A1 (en) 1993-09-21 1994-09-20 Implant for the intervertebral space

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EP (3) EP1447061B1 (en)
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US5888224A (en) 1999-03-30
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